Apparatus sob casting metal pbodttcts



A. R. ROWE APPARATUS FOR CASTING METAL PRODUCTS Feb. 19, 1929,

Filed Jan. 12, 1927 H ll]:

\ \vwwy INVENTOR. A 1 2. Rowe. BY @M ATTORNEY Fat-stated 19, I929.

ANDREW REED RO'WE, OF MIDLAND, PENNSYLVANIA.

APPARATUS FOR CASTING METAL PRODUCTS.

Application filed January 12, 1927.

This invention relates to an apparatus tor casting metal products and is an improvement in the apparatus described in my palent of December 13, 19:21, No. lilflthi'tltl.

An object of the invention is to construct a hot top easily insertible in the top of a mold, but which will always allow the escape ot the gases from the mold as the metal is poured into the mold.

Another object of the invention is to pro vide for ready removal of the bottom of the hot top for repairs or replacement.

Another object ot the invent on is to so design the parts that the hot top may he of a shape easily molded and theretore inexpensive to construct.

lVith these and other objects in view. which will be developed as the description proceeds, I will now describe my invention 0. connection with the accompanying drawings in which:

Figure 1 is a sectional view on the line 1l of Fig. 2.

2 atop plan view of the mold and hot top.

Fig. 3 is a section of a modification taken on the line 3-3 01" Fig. +l.

l is top plan view of the device shown in Fig. 8.

In the modification shown in Fig. l. l is the hot top having lugs 22 and 33 to support it in the top of the mold t. This hot top 1 is preterahly made of retract material and molded with the lugs thereon so the hot top may be set in the end oi." the mold as shown in Fig. ly and is support-ed in position on the ends of the lug:-

he bottom 5 as shown in ll igure 1 may be constructed with the inclined sides so as to lit on the tops oi inclined portions (3 of a ledge 7 projecting inwardly around the ire terior ot the hot top. The bottom 5 has holes 8-Q to break up the stream oi metal as it is poured into the hot top ii'rom above and allow the metal to run down through the holes 8S to break up the large stream as it issues trom the ordinal ladle (not shown). In the moditi at-ion shown in Fipairc l. there is a shirt 10 extending diuvnwardli from the bottom 5 to prevent the spattering oi the metal as it passes through the holes 8 against the inner sides of the hot top.

As the metal runs into the mold l. quantities of gas are released and the hot top tits loosely in the top of the mold so that the gas can escape around the bottom of the hot top be- Serial No. 160,732.

tween the lower portion thereof and the interior ot the upper portion of the mold between the lug and 33 as indicated by the drawin In the modihcatiim shown in Fig. 3 the hot top 1. has an interior ledge 7 and the bottom of the hot top 5 having the holes 8 rests on the ledges T. In this case I have lugs Q Q, 38 near the middle of the sides of the hot top. This allows plenty o't open space between the bottom of the hot top and the mold i for the escape of the In either modification the bod of the hot top is in a shape to be COHYCIllGlliLlY molded of refractory material. In placing the same in the top of a mold it. may be easily grasped by the lugs and placed in position and since it is supported in the mold by the lower end of the lugs there is always enough space between the bottom of the hot top and the interior oi the mold for the escape of The. bottoms which are also molded from rettractoi r n'iaterial are easily removed and cleaned or new bottoms substituted. Other manufacturing advantages an apparent from my construction and the hot top has been found to be easily handled and cfilcient in its action.

I claim as my invention l. A hot top of refractory material comprising: a body portion, a ledge integrally molded around the interior of the bodv portion, a separate bottom witl. holes therein adapted to rest on said ledge and having a portion extending below said ledge, integral hie-s molded on the exterior oi the body por tion. the bottoms of which are above the bottom oi body portion, the bottom of the body portion being smaller than the interior of the mold to allow escape ot gases from the mold when the hot top is "full of molten metal.

2. .3 mt lop eouriu-isi:i;;':1 body portion. a ledge on the nterior of the boil port ion. said ledgl'e having anini-liueil upper surtace and a separable bottom for the hot top with an inclined portion to rest. on and lit the inclined upper surface of the ledge. said bottom having holes therethrough, and a skirt extending; 'lrom its lower side below the ledge in the hot top to prevent sputtering oi the metal against the inner sides of the hot top as the metal passes through said holes.

In testimony whereof I afiix my signature.

.ANDR-EIV REED ROWE. 

